OverviewBurt and Frank are the kinds of guys that should consider themselves lucky to have a job at all. They work in a warehouse at a medical supply company that also happens to house cadavers on the premise for research. One night, Burt and Frank were making their usual bumbling mistakes when Frank accidentally released what appears to be a toxic gas into the air. The two figure that they can just ignore the problem and it will go away, but that gaseous problem starts raising the cadavers from the dead and turning them into brain-eating zombies. Burt and Frank have to figure out how to stop the onslaught of dangerous zombies before someone else gets hurt. Things get complicated when more and more of the recent dead start coming back to life.